Possible Plot Hole..? Spoilers
First, I like this film.
However, if Martin Asher was the hermit crab he was supposed to be, why would he knowingly or purposely STILL want James Costa with all that police presence?
I get that James Costa was Martin Asher and it was all apart of Martin's plan to throw the police off b/c he was in the middle of taking another person's life and therefore had to become the "witness" and he owed Sutherland's character money. BUT, no psychopath is going to hang around with all that police presence. I think the police should have thought about this. Like, a real killer would just move on...run away no? IDK...that just didn't make any sense to me.
<<Death is whimsical today.>>